1. Cut the fish into strips 1 ½ inches long by ¼ inch wide. Lightly rub-sprinkle salt and garlic into the fish flesh. Rest for 30 minutes. 2. Put the fish in a glass bowl and fold in the lime juice carefully. Add peppers and onion. Refrigerate for 4 to 6 hours, or even overnight. 3. Just before serving, mix in the parsley and cilantro. 4. To serve, line a bowl or large platter with the lettuce and accompany with garnish. Peruvian Garnish (summer) 4 ears of corn, cooked and cut into 2-inch pieces 1 pound sweet potatoes, roasted in the skin, peeled, and sliced into 1/2-inch-thick rounds 1 pound yuca, peeled, cut into little-finger-sized slices, and boiled until soft A few strands of yuyo (a tangy seaweed, optional) Mexican Garnish 16 tortillas, cut into thick strips and fried until crisp 1 medium red onion, thinly sliced 1 slightly firm avocado, thinly sliced (winter) 4 tomatoes, thinly sliced (summer) olive oil (optional) Ecuadorian Garnish Pastry shells